Bone-saw.



A. MEYER.

BONE SAW.

APPLIGATION FILED AUG.25,1909. 967,805 Patented Aug. 16, 1910.

3 a s a 5 v m x 2 W a w V I M. m W A .cil

hand saws known as bone saws, the object produce a simple and inexpensive tool and for the'purposes for Which'it is devised tit new and useful Improvements 'in Boneuse the same-. reference being hurl to the.

which will permit the sewing to be done,

crence indicate corresponding parts in the nailed in the outer end of sziicl .nrni, such shaft carrying a circular saw 8 having teeth sueusr nurse; or omniin, onnrro riiirs.

norm-emit.

tie-mos.

ToaZZ whom it/rnay'czmcem: 4

Be it known that I, AUGUST Msrnn w citizen of. theqUnite d States, residing .at ()elalnnal in the county. of Alameda and State of Califor'niu have invented certain Saws; and I do declare thefollowing to be some, such as will enable others skilled in the art to wl'lich' itsppertamsito make and accompanying. drawings-,- and :tofthe char acters of reference merited thereon, which tonne part ofthisapplication.

This inventionxe ates. to improvements in sziws'eml particularly tothat class oi,"

of the invention being to produce a. bone hand saw w'ich will be: power operated easier, quicker and-cleaner tbs-n cen be (lone with saws which are operated; manually.

, A i3urther- .ob ect of the invention 1S.i10.

yet one which. will be exceedingly effective These objects I accomplishbysuch'struo' ture and relative, arrangement ofparts as will fully appear by a perusal 'ot' the-it'- lowing'specificstion'ancl claims.

In the cirawingssimilor characters oi'jrefseveral views;

Figure 1 is-s. side elevation of: the con1-. plete tool. Fig. 2 is it sectional view taken on a line w-w of Fig. 1. Fig. 3 is a frog .mentnry View of a. guard connection. j Referring now more particularly to the characters of reference on the drawings .1 lesignates a hollow handle member curr 1; on electric motor 2 having a drive pul- 3, abelt. 4 extending from said pulley}? through e hollow projecting nrm 5 eml shining a pulley-J6 secured to a shaft Z jourtl'oi figreaterwidth than the body of the saw.

(in the outer end of the shaft 7 is i'ilnngreil collar 10 having abutted normally against it eblock ll of a rod 12 movable in an orisfidmombr Letters mm. n neauoiiinea new 25, 1909.1 fler eliwo s gsgs.

fi'ced flang e fi on thehandleo, there being apr'ing14 interposed between said member 13 and said member 11.

' Y Pivotally mounted on the member ll asst guard members comprising lower members 15 pivoted to upper members 16 at b and. .a full, clear, and-exact description of the j suc upper members being pivoted together at a forming jaws 17.

In practice by means of the pivotal connections a b i and 0 the jaw members "'17 are'clamped onto the object tobe sawed end fixed in ,such position by means of a wing nut 18 and tlie edvancenient of the saw is permitted pygu flange 13 advancing against endo mp ssi .the spring14, such spring .'returning the collar-10 to its normal.

positiop against the member 11 after, the saw'ingfo ration is complete' the jaws 17 holditigt 'eirl operation 'th permitting a quick, easy on clean cutto' be" made. The s'tructureoi the teeth its at ..9 permits, Ihave'found, 9'. more eificient action of the saw.

ey'ice [steady and true durin "This saw can be used readily where any l'ihnd saw Work is required, by chenging thesaw to suit tlic difl'ei'ent purposes;

' From the foregoing. description it can be v readily seen that I have produced such. at

hand saw as. readily fulfils the objects of the invention as set forth herein.

.2 While, this specification sets forth in de tall the present and preferred construction of the deviceysti'll in practice such deviations sof fromwsuch detail may be resorted to as do not form a cleporture from the spirit of the invention.

Having thus describetl'iny invention whet lgclaiim as new and useful anddesire to se cure by'Letters fPutent' 1. A honcl saw comprising a. casing, it

said guide longitudinally with respect to sz id casing and a resilient meansmaintainpower operated saw on said casing,- a. guard movable longitudinally of said casing, soul ing the normel'position of said guard.

2. A hand saw comprising it casing, :1-

guard comprisingpairsof lower and upper members pivotolly joined at their adjacent v Q i I senses,

ends, the upper members being piirota-lly movable through said orifice, and a springl 10 I joined attheir extremities and means for interposed betweensaid bleck and sai fixing said-guard members in rigid positiqn.- flange. v

-3. A: hand saw e'omprising a casing, a In testimon whereof Laflix my signature 5 power. driven sawthereon, a, guide on said 1n presence 0 two witnesses.

,casing,' a guardmoqable in'said; guide, a a AUGUST MEYER. block on" said guard normally! seat ng Witnesses: against said guide, a"r0d on said block, an S. G.' BnrrrAN,

orifice'd flange on said casing, said rod being I v J. H; JOHNSON. 

